The invention discloses a solar intermediate temperate heat collection and storage
system and belongs to solar application. The solar intermediate temperate heat collection and storage
system comprises an
evacuated tube heat collector (1), a linear focusing heat collector (2), a
circulating pump (3), a heat storage device (4), a flow diffusing
pipe (5), heat storage balls (6) and a convergence layer (7); the heat storage device is a box body which is provided with a heat
insulation layer in all directions; the lower end of the box body is provided with the flow diffusing
pipe, the heat storageballs are located above the flow diffusing
pipe, and the convergence layer is located above the heat storage balls; the flow diffusing pipe is in a tree shape composed of a main pipe and
branch pipesand is provided with a plurality of pores; the upper end of the
evacuated tube heat collector is connected with the lower end of the heat storage device through the linear focusing heat collector andthe
circulating pump, the upper end of the heat storage device is connected with the lower end of the
evacuated tube heat collector, and a heat collection and storage circulating loop is formed; andair serves as a
heat transfer medium of the
system. The solar intermediate temperate heat collection and storage system utilizes the air for
heat transfer, utilizes concrete for
energy storage and isthe highest in heat collection efficiency, the lowest in
energy storage cost, capable of being suitable for multiple solar products and wide in application range.